18555790

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{3923}}^1$

素因数の和:3984

約数の個数: 32

約数和(自身を含む): 37293696

約数和(自身を除く): 18737906

約数列:

[1, 2, 5, 10, 11, 22, 43, 55, 86, 110, 215, 430, 473, 946, 2365, 3923, 4730, 7846, 19615, 39230, 43153, 86306, 168689, 215765, 337378, 431530, 843445, 1686890, 1855579, 3711158, 9277895, 18555790]

約数ペア:

[(1, 18555790), (2, 9277895), (5, 3711158), (10, 1855579), (11, 1686890), (22, 843445), (43, 431530), (55, 337378), (86, 215765), (110, 168689), (215, 86306), (430, 43153), (473, 39230), (946, 19615), (2365, 7846), (3923, 4730)]